is director of PAN’s Grassroots Science Program and a Senior Scientist with a background in insect ecology and pest management. Her campaign work focuses on supporting and strengthening agroecology movements and policies in the U.S. and globally, in addition to challenging corporate control of our food and seed systems.. Follow @MarciaIshii

Marcia Ishii-Eiteman's blog

I’ve been hearing through the grapevine that the U.S. Department of Agriculture was startled by the public uproar over Dow AgroScience’s application for approval of its controversial new GE corn, designed to be used with the infamous and highly hazardous weedkiller, 2,4-D.

By quietly opening the public comment period on December 21, 2011, the agency had apparently hoped to slide this one by without attracting public attention. Instead, a vocal and growing movement of people from all walks of life has emerged to challenge the Big 6 pesticide/biotech companies’ introduction of this new generation of toxic pesticide-seed combinations.

Media are all atwitter about a new Naturestudy by researchers at McGill University and the University of Minnesota that compares organic and conventional yields from 66 studies and over 300 trials. In extrapolating the study's findings to the charged question of how to feed the world, more than a few got it all wrong.

The core finding of the study is that “yield differences [between organic and conventional] are highly contextual, depending on system and site characteristics.” In other words, sometimes organic does better, sometimes conventional does. In fact, the sheer variety of comparisons led Mother Jones columnist Tom Philpott to observe that the study “like a good buffet… offered something for every taste.”

Spring has sprung, and farmers across the country are preparing for planting season. One of their biggest headaches will be dealing with the millions of acres of cropland that have been infested with superweeds and new generations of superbugs.

These superpests have evolved as the direct — and inevitable — consequence of Monsanto’s aggressive promotion of its genetically engineered “RoundUp-Ready” and insecticidal seed packages over the past 15 years.

As if the disaster of RoundUp resistant superweeds sweeping our farmland weren’t enough, Monsanto is now preparing to launch an even greater disaster: a new soybean engineered to be resistant to the older, more toxic weedkiller, dicamba. The seed — which Monsanto plans to market in 2014 if approved — will also come stacked with the company’s RoundUp Ready gene, and is designed to be used with Monsanto’s proprietary herbicide “premix” of dicamba and glyphosate.

More dicamba-tolerant crops (corn, cotton, canola) are all waiting in the wings. If this new generation of GE crops is approved, then dicamba use will surge, just as it did with RoundUp. And we all know how well that didn't work out.

A raging public controversy over genetically engineered (GE) rice in China captured media attention in recent months, and has culminated in a surprising win. A few weeks ago, the country’s State Council released a new Draft Food Law1 that, if passed, would protect the genetic resources of China’s food crops and restrict the application of GE technology in its main food crops.

This is significant progress in the effort by farmers and campaigners in China and indeed across Asia to protect the genetic integrity, diversity and heritage of their rice.